Ahmed is a statistical epidemiologist and Senior Research Fellow at Bristol Medical School, University of Bristol. His research focuses on describing and characterising physical and mental health trajectories, including the role of early life factors and effects of trajectories on later outcomes. He currently holds an MRC New Investigator Research Grant focused on advancing growth curve analysis methods. Ahmed also leads an international birth cohort collaboration within the A.R.T-HEALTHPARTNERSHIP that is investigating the effects of assisted reproductive technology on offspring health. His previous experience includes leading a research work package on environmental exposures and health trajectories for the Horizon 2020 LongITools project and helping to establish the EU Child Cohort Network as part of the LifeCycle project. Ahmed earned his PhD in epidemiology from University College London, having previously completed an MPH at the University of Essex and an undergraduate degree in medical sciences at University College Cork.